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Wonders of the real world

Wonders of monkeys

Monkeys (the Old World and New World monkeys)

The real monkeys

Monkeys include Old World monkeys and New World monkeys. Here are three true things about them.

Two worlds

Old World monkeys are found in Africa and Asia. New World monkeys live in Mexico, Central America and South America.

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Look at the nose

Most Old World monkeys have small, curved nostrils set close together. Most New World monkeys have round nostrils set far apart.

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Tails and pouches

Some New World monkeys, such as spider monkeys, have tails that can grab and hold, called prehensile tails. Macaques and some other Old World monkeys have cheek pouches, but New World monkeys do not.

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Monkey babies

Riding, changing colour and playing

Monkey babies are helpless at birth, so they get rides by clinging to their mothers. Some kinds of monkey have babies that are a completely different colour from their parents. Adult colobus monkeys have black hair, but a newborn is white, and langur babies are orange. The colour usually changes within the first six months. Marmosets and tamarins do things differently. The fathers have almost all the responsibility. They carry the babies on their backs and watch over them, only handing them to their mother for feeding. These monkeys regularly have twins or triplets. When the troop is not travelling, monkey babies stay very active and spend much of their waking hours playing.

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Monkey talk

How a troop gets along

Monkeys are very social, so it is important that they communicate well to get along in their large groups. Groups of monkeys, called troops, travel together by day to find food. Monkeys use barks, screams, grunts, squeaks, hoots, wails and moans to talk to one another. Staring is a threat in monkey society. To keep family bonds, monkeys groom each other every day. Grooming seems to be a way to make up after a fight, or to make friends with other members of the troop. Vervet monkeys even have different alarm calls for different predators, such as eagles, pythons and leopards.

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Three remarkable monkeys

Black howler monkey

Alouatta caraya

The call of howler monkeys is one of the loudest calls made by any land animal. Under certain conditions, a howler's call can be heard from about 4.8 kilometres away. Black howler males have a black coat, while females are blonde.

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A proboscis monkey with a very long nose sitting in a tree beside a river.

A proboscis monkey in a tree beside a river

Proboscis monkey

Nasalis larvatus

Proboscis monkeys live only on the island of Borneo. A male's large nose makes his calls louder than a female's. Webbed fingers and toes help them move about their river and coastal homes, and they doggy-paddle across rivers.

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Pygmy marmoset

Cebuella pygmaea

Pygmy marmosets are the smallest monkeys in the world, at just over 100 grams. They live in rainforests of the western Amazon Basin. They gnaw holes in tree bark, and when the sap puddles up in the hole, they lap it up with their tongues.

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The pictures on this page are AI-generated illustrations. The facts are checked against the sources linked.